dmaengine: jz4780: Add support for the JZ4760(B)

Add support for the JZ4760 and JZ4760B SoCs.

Both SoCs have only 5 DMA channels per chip. The JZ4760B introduced the
DCKES/DCKEC registers.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210120105322.16116-2-paul@crapouillou.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/dma-jz4780.c

@@ -1004,6 +1004,18 @@ static const struct jz4780_dma_soc_data jz4725b_dma_soc_data = {
 		 JZ_SOC_DATA_BREAK_LINKS,
 };
 
+static const struct jz4780_dma_soc_data jz4760_dma_soc_data = {
+	.nb_channels = 5,
+	.transfer_ord_max = 6,
+	.flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC,
+};
+
+static const struct jz4780_dma_soc_data jz4760b_dma_soc_data = {
+	.nb_channels = 5,
+	.transfer_ord_max = 6,
+	.flags = JZ_SOC_DATA_PER_CHAN_PM,
+};
+
 static const struct jz4780_dma_soc_data jz4770_dma_soc_data = {
 	.nb_channels = 6,
 	.transfer_ord_max = 6,
@@ -1031,6 +1043,8 @@ static const struct jz4780_dma_soc_data x1830_dma_soc_data = {
 static const struct of_device_id jz4780_dma_dt_match[] = {
 	{ .compatible = "ingenic,jz4740-dma", .data = &jz4740_dma_soc_data },
 	{ .compatible = "ingenic,jz4725b-dma", .data = &jz4725b_dma_soc_data },
+	{ .compatible = "ingenic,jz4760-dma", .data = &jz4760_dma_soc_data },
+	{ .compatible = "ingenic,jz4760b-dma", .data = &jz4760b_dma_soc_data },
 	{ .compatible = "ingenic,jz4770-dma", .data = &jz4770_dma_soc_data },
 	{ .compatible = "ingenic,jz4780-dma", .data = &jz4780_dma_soc_data },
 	{ .compatible = "ingenic,x1000-dma", .data = &x1000_dma_soc_data },